diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-09-21 14:01:35 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-09-21 19:19:24 +0300 |
| commit | 74c1c694a2deab0561c1f502de9d32fdc7eb7b32 (patch) | |
| tree | 02afbca601efb70b3ed3cb9337eb180ea543b5a8 /drivers/gpu/drm/i915/i915_gem_execbuffer.c | |
| parent | 41693fd5237397d3c61b311af0fda1f6f39297c2 (diff) | |
| download | linux-74c1c694a2deab0561c1f502de9d32fdc7eb7b32.tar.xz | |
drm/i915: Document the split in internal and public execbuf flags
Since we reuse the same field for the user passing in their control
flags, and for the kernel to track a couple of bits of state, document
and check that those do not overlap.
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170921110135.15990-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 214a850b4b3c..61b9b079c8c8 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -58,6 +58,7 @@ enum { #define __EXEC_HAS_RELOC BIT(31) #define __EXEC_VALIDATED BIT(30) +#define __EXEC_INTERNAL_FLAGS (~0u << 30) #define UPDATE PIN_OFFSET_FIXED #define BATCH_OFFSET_BIAS (256*1024) @@ -2185,6 +2186,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, int out_fence_fd = -1; int err; + BUILD_BUG_ON(__EXEC_INTERNAL_FLAGS & ~__I915_EXEC_ILLEGAL_FLAGS); BUILD_BUG_ON(__EXEC_OBJECT_INTERNAL_FLAGS & ~__EXEC_OBJECT_UNKNOWN_FLAGS); |